Parsing routines

Does anyone know a translation that could fit the context?
Thanks everyone!!

"The value is N (no parsing routine is used)."
"If no parsing routine is defined on the System control record, field codes 140–143 may need to be defined on the Definition record."
"Code that indicates which parsing routine is used."

Re: Parsing routines

Si no hay ning&#250;n an&#225;lisis de rutina se define sobre el sistema de control de registro, c&#243;digos de campo 140-143 puede ser necesario definido en el registro de definici&#243;n.
i think thats what the second part means